Overload functions in Python

Re:Overload functions in Python by testuser66 on Thursday February 20, 2020 @04:48AM (#22373887)

I fully agree that named kwargs is perfectly acceptable, but this is the version I think is horrible:

    def func(*args, **kwargs)

is valid and completely ambiguous - you have no idea what it's doing unless you read the source, and track down how it branches out. IDEs are stopped dead in their tracks as they aren't going to parse the logic to figure it out

And yes it's not the most common approach, but I have seen it enough times to despise it. This overloading approach removes the need for it so I'm all for that.

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Re:Overload functions in Python by joshuamorton on Thursday February 20, 2020 @04:57AM (#22373934)

> This overloading approach removes the need for it so I'm all for that.

Ish, see if your IDE supports it (hint: it won't, but it will support named kwargs).

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Re:Overload functions in Python by testuser66 on Friday February 28, 2020 @02:56AM (#22441236)

And it doesn't really need to. Consider this:

    from functools import singledispatch
    from typing import Union

    @singledispatch
    def myfunc(arg:Union[int, str]):
        print("Called with something else")
    
    @myfunc.register
    def _(arg:int):
        print("Called the one with int")
    
    @myfunc.register
    def _(arg:str):
        print("Called the one with str")

    myfunc(123)
    myfunc("123")

Everything works as you'd expect, and the IDE's type hints are accurate as long as you actually put the correct type hint

    def myfunc(arg:Union[int, str]):

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